Convert gigabytes to bytes
Gigabyte (GB) to byte (B). One gigabyte equals 1000000000 bytes.
Formula
Gigabyte to byte conversion table
| Gigabytes | Bytes | Bytes | Gigabytes |
|---|---|---|---|
| 1 GB | 1000000000 B | 1 B | 1.000000e-9 GB |
| 2 GB | 2000000000 B | 2 B | 2.000000e-9 GB |
| 3 GB | 3000000000 B | 3 B | 3.000000e-9 GB |
| 5 GB | 5000000000 B | 5 B | 5.000000e-9 GB |
| 10 GB | 10000000000 B | 10 B | 1.000000e-8 GB |
| 20 GB | 20000000000 B | 20 B | 2.000000e-8 GB |
| 50 GB | 50000000000 B | 50 B | 5.000000e-8 GB |
| 100 GB | 100000000000 B | 100 B | 1.000000e-7 GB |
| 500 GB | 500000000000 B | 500 B | 5.000000e-7 GB |
| 1000 GB | 1000000000000 B | 1000 B | 0.000001 GB |
To convert gigabytes to bytes, multiply the number of gigabytes by 1000000000. One gigabyte equals 1000000000 bytes, and one byte equals 1.000000e-9 gigabytes, so the relationship is fixed and exact. As a worked example, 10 GB comes to 10000000000 B. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a digital storage conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common gigabyte values already worked out in bytes, plus the reverse byte to gigabyte direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many bytes are in a gigabyte?
One gigabyte equals 1000000000 bytes. The ratio is constant, so you can multiply any number of gigabytes by 1000000000 to get bytes.
What is the formula to convert gigabytes to bytes?
Use bytes = gigabytes × 1000000000. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert bytes back to gigabytes?
Go the other way by using one byte equals 1.000000e-9 gigabytes. You can also press the swap button in the converter above to flip the direction in one click.
Is this gigabyte to byte converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.